Mac: Quicksilver is our favorite Launcher for the Mac, but it's always been a little less that stellar when running on Lion. Now, the team behind the open source application launcher have optimized the app for OS X Lion, added official support for Apple's latest OS, introduced auto-updating plugins, and more.

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One of the new Quicksilver's biggest features is the fact that plug-ins can be set to automatically update whenever a new version is available. You won't have to obsessively check the plug-ins page to see if your favorite or one that's been acting up has been updated recently. The Quicksilver Airport module has also been updated and lets you toggle Airport and switch networks without crashing the way it used to, and the app has been given a slight visual overhaul to fit in with Lion.

The latest version of Quicksilver support Mac OS 10.6 and higher (Snow Leopard and Lion only,) meaning Leopard users will have to update their OS to get the new features and bugfixes, or stick to the previous build. As always, Quicksilver is completely free. Are the new features and Lion support enough to make you update or give Quicksilver another try? Or perhaps you've jumped ship for a similar app like Alfred? Share your thoughts in the comments.